Effect of postharvest treatment and preservative solutions on flower quality and vase life of cut chrysanthemums.

摘要

The effects of pretreating cut chrysanthemum (cultivars Kyungsubang and Chunkwang) flowers with silver thiosulfate (STS; 2 mM for 30 min) or Chrysal RVB (0.2% for 16 h) on the vase life of flowers in various holding solutions were investigated. A solution containing 3% sucrose + 150 p.p.m. hydroxyquinoline sulfate (HQS) + 50 p.p.m. AgNO3 significantly extended vase life of Kyungsubang flowers from 6.4 and 8.9 days for flowers pretreated with water or Chrysal RVB, respectively, and held in distilledwater, to 29.4 and 32.9 days, respectively, for flowers pretreated with distilled water and Chrysal RVB, respectively. The sucrose + HQS + AgNO3 solution also improved the quality (FW and flower diameter) of flowers. In all treatments, ethylene production was low. Pretreatment of Chunkwang flowers with STS or Chrysal RVB extended vase life, particularly for flowers held in the sucrose + HQS + AgNO3; carbonated water (20 or 30%) was also a good holding solution for promoting vase life.